A study conducted in Sydney during the early epidemic stage of COVID-19 has found an association between lower humidity and an increase in locally acquired positive cases. Researchers discovered a 1 percent decrease in humidity ...
Jun 1, 2020
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Experts continue to learn more about SARS-CoV-2, the virus that causes COVID-19, and how it behaves. Dr. Gregory Poland, an infectious diseases expert and director of Mayo Clinic's Vaccine Research Group, is answering questions ...
Apr 1, 2020
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Why do most viral epidemics spread cyclically in autumn and winter in the globe's temperate regions? According to an interdisciplinary team of researchers of the Italian National Institute for Astrophysics, the University ...
Nov 2, 2020
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Annual spikes in infections from the respiratory syncytial virus—or RSV—are usually so predictable that "you can set your clock" by it, says Yale School of Public Health Associate Professor of Epidemiology (Microbial ...
Dec 16, 2022
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Our immune systems vary with the seasons, according to a study led by the University of Cambridge that could help explain why certain conditions such as heart disease and rheumatoid arthritis are aggravated in winter whilst ...
May 12, 2015
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Microfluidic technology may offer faster and more controlled ways to produce radiotracers for medical imaging, including studies into Parkinson's disease, thanks to a first of its kind approach in the Southern Hemisphere ...
Sep 19, 2013
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The ongoing coronavirus pandemic has infected nearly three quarters of a million people worldwide, with more than 140,000 cases in the United States. As laboratories around the world—and here at Johns Hopkins—rush to ...
Mar 31, 2020
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A rare patient has made it possible for researchers to prove that vitamin D—the "sun vitamin"—helps the body fight tuberculosis.
Jan 9, 2023
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Elsevier, the world's leading provider of scientific, technical and medical information products and services, announced today that the Saudi Ministry of Health has published its 2011 health conditions for travelers to the ...
Aug 23, 2011
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(HealthDay)—Fall is approaching, and so is the possibility of what public health officials are calling a "twindemic"—overlapping epidemics of both COVID-19 and influenza.
Aug 21, 2020
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Coordinates: 45°0′0″S 0°0′0″E / 45°S 0°E / -45; 0
The Southern Hemisphere is the half of a planet that is south of the equator—the word hemisphere (from the greek word σφαιρα (sphere) +ημι(half)) literally means 'half ball'. It is also that half of the celestial sphere south of the celestial equator.
Earth's southern hemisphere contains all or parts of four continents (Antarctica, Australia, parts of South America and parts of Africa), four oceans (South Atlantic, Indian, South Pacific, and Southern) and most of Oceania. Several islands off the Asian continental mainland are also in the Southern Hemisphere. Due to the tilt of Earth's rotation relative to the Sun and the ecliptic plane, summer is December 21 to March 21 and winter is June 21 to September 21. September 22 is the vernal equinox and March 21 is the autumnal equinox.
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